Empowering Your Ideas

DevelopDC is a small but powerful Baltimore-based computer programming company comprised of talented and passionate people. We specialize in data-intensive applications for the web and mobile.

Our Services

Big Data Solutions

Big Data Solutions

We help you structure and present your data in a streamlined way that makes it a more powerful tool for you and your clients.

Web and Mobile Development

Web & Mobile Development

Our responsive mobile first design process ensures solid websites and applications you can use wherever you live, play and work.

Privacy and Security

Privacy & Security

Rest assured that we will protect your data and online transactions from known vulnerabilities and attacks.

Data Hosting and Infrastructure

Data Hosting & Infrastructure

Your application is only as strong as the foundation on which it’s built. We provide superior support and performance for your mission-critical applications.

Our Products



Sparo is revolutionizing the way we give to charities. With a network of participating merchants and charities, Develop DC’s integrated transaction technology allows users to make charitable donations at the online point of purchase.

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Citybizlist is read by high-level business professionals with money and power in the local marketplace. Develop DC helps them build and keep their audience by providing new ways to make their data useful and relevant.

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Tenant Rex

TenantRex empowers real estate brokers to control how much data they share and who they share it with, all in a protected, secure environment, built by Develop DC, that meets the security standards of government and international organizations.

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Our Clients

Johns Hopkins University
University of Maryland
CSX Corporation
Bank of America
Bath and Body Works
National Science Foundation
University of Phoenix

Who We Are

Develop DC is in Baltimore. Our name is based on the initials of our founder, David Crowley, and any similarity to names of other nearby cities, real or fictional, is merely coincidental. We root for the Ravens and the O’s, Hon. We are proudly located in the heart of one of Baltimore’s most famous neighborhoods, celebrated for its charm and abundant pink flamingos, Hampden. In the tradition of the area, we are down to earth and hard working. Please come and see us sometime!

Meadow Mill


David Crowley

David Crowley

Founder & Principal

Beverly Guillermo

Beverly Guillermo

Chief Technologist

Kyril Revels

Kyril Revels

Senior Software Engineer